Cavalier-Smith, T.; Chao, E.E.; Allsopp, M.T.E.P. (1995). «Ribosomal RNA evidence for chloroplast loss within Heterokonta: pedinellid relationships and a revised classification of ochristan algae». Arch. Protistenkd. 145 (3–4): 209–220. doi:10.1016/S0003-9365(11)80316-7
